358
Chapter 20: A to Z Function and Instruction Reference
20ATOZ.DOC TI-86, Chap 20, US English Bob Fedorisko Revised: 02/13/01 2:42 PM Printed: 02/13/01 3:05 PM Page 358 of 118
SinR
[
iterations,
]
equationVariable
Uses
xStat
and
yStat
for
xList
and
yList
, respectively.
These built-in variables must contain valid data of the
same dimension; otherwise, an error occurs. The
regression equation is stored to
equationVariable
and
RegEq
.
SinR
[
iterations
]
Uses
xStat
and
yStat
, and stores the regression equation
to
RegEq
only.
SlpFld
† graph format screen
(scroll down to
second screen)
SlpFld
In
DifEq
graphing mode, turns on slope fields. To turn
off direction and slope fields, use
FldOff
.
Solver(
†
-
t
Solver(equation,variable,guess,{lower,upper})
Solves
equation
for
variable
, given an initial
guess
and
lower
and
upper
bounds within which the solution is
sought.
equation
can be an expression, which is
assumed to equal 0.
Solver(equation,variable,guess)
Uses
L
1
E
99 and 1
E
99 for
upper
and
lower
, respectively.
If y=5, solve x
3
+y
2
=125 for x. You guess the
solution is approximately 4:
5
¶
y
b
5
Solver(x^3+y
2
=125,x,4)
b
Done
x
b
4.64158883361
Solver(equation,variable,{guessLower,guessUpper})
Uses the secant line between
guessLower
and
guessUpper
to start the search.
Solver(
will still search
for a solution outside of this range.
